Developing a framework for evaluating service oriented architecture governance (SOAG)

Today, service oriented architecture (SOA) has created the opportunities to improve agility and speed in aligning business needs with information technology infrastructure. Most of the organizations in the process of applying this technology encounter with challenges and may have failure despite of spending a lot of energy and huge investments. Therefore they need to implement a service oriented framework for governance. The organizations require a framework to assess their current status of SOA governance, determine their SOA governance requirements and then offer a suitable model for their SOA governance. The aim of this study is development of a framework for evaluating SOA governance. Data collection tool is questionnaire and in order to test the proposed framework, a sample of 16 experts in the field of SOA was included. The results confirm the proposed framework. Then in order to evaluation of the confirmed framework; it was implemented in an Iranian private bank.     

Turbulent Transport in the Tokamak Edge Plasma and SOL Region

In this work, the turbulent transport in the edge plasma and Scrape-Off Layer (SOL) region of IR-T1 tokamak at the presence of biased limiter has been investigated and analyzed. The time and radial evolution of floating potential, electric field and turbulent transport have been measured by using two arrays of the Langmuir probes in both the radial and poloidal directions. The analyses have been done by the Fast Fourier Transport method and spectral features of them are obtained with the help of the standard Auto-Correlation technique and modified covariance power spectral density estimate. The probability distribution function and actual transfer function magnitude of the radial and poloidal turbulent transport (Γ_r and Γ_p) have been investigated and compared in the edge plasma and SOL region. Also the histogram of turbulent transport has been analyzed and compared in the edge and SOL at presence of positive limiter biasing. The results show that in the edge plasma poloidal turbulent transport (Γ_p) is about of 60 % more than SOL region whereas radial turbulent transport (Γ_r) is about of 40 % less. During the application of positive biasing, it was found that Γ_r in the IR-T1 reduces by about 80 % in the edge plasma and 45–50 % in the SOL. Increase of Γ_p is about of 50 % after applied positive biasing in the edge while it increases 70 % nearly, in the SOL. Consequently, the improvement in confinement can be obtained for positive limiter biasing.     

Double capacitive probe for the measurement of plasma potential in tokamak

Capacitive probe with two pins that can measure floating potential of plasma in the tokamak is described. Probe is compared with a Langmuir probe. Small probes size and short connections allow to achieve better performance.     

Food Safety and Regulatory Compliance in Europe

It is obvious that food and feed should be safe and wholesome in order to protect the consumer and to ensure animal health and welfare. Animal health and welfare are important factors that contribute to the maintenance of food quality and safety.All stakeholders require a risk-based, proportionate,integrated and transparent approach to 'farm to fork'official control across all EU member states and between major world trading partners. Also consumers and industry require a consistent EU and global approach to food law implementation and enforcement to prevent differences in food safety and trading conditions developing.To monitor compliance with feed and food law samples have to be analysed by laboratories in EU member states and in other countries who export into the EU. Many analytical methods applied for such official controls are complex. This is particularly the case for methods used for the detection of approved and unapproved additives, veterinary and pesticide residues and natural and process contaminants.How do we ensure consistency and comparability of analytical measurements between laboratories and between countries? How do we predict and anticipate the target analytes that we may have to detect and determine in samples from the food chain next week, next month, and next year? As a consequence, how do we prepare analytical methods that will be capable of addressing these challenges and how do we demonstrate that they are robust, validated and provide data that will withstand challenge?These are problems that are faced by laboratories in all trading nations. This article will review the issues, describe a project that aims to anticipate problems that may affect the food chain in the future and review approaches that enable laboratories to demonstrate the reliability of their methods of analysis via the use of validation protocols, reference materials and proficiency testing schemes.     

Relations Between the Plasma Diamagnetic Effect and Plasma Basic Parameters in IR-T1 Tokamak

Precise determination of the poloidal Beta, internal inductance, plasma energy, plasma pressure, plasma temperature, plasma resistance, plasma effective atomic number, and plasma energy confinement time are essential for tokamak experiments. In this paper an experimental method especially based on the plasma diamagnetic effect for measurements of these parameters in IR-T1 tokamak are presented. For these purposes a diamagnetic loop with its compensation coil, and also an array of magnetic probes designed, constructed, and installed on outer surface of the IR-T1. Also in this work we measured the Shafranov parameter, plasma current, plasma voltage, and the plasma density by the magnetic probes, Rogowski coil, poloidal flux loop, and the Langmuir probe measurements, respectively.     

Study the Output Characteristics of a 90 kJ Filippove-Type Plasma Focus

The output characteristics of a Filippove-Type plasma focus “Dena” (288 μF, 25 kV, 90 kJ) is numerically investigated by considering the voltage, current, current derivative, and maximum current as a function of capacitor bank energy in the constant Argon gas pressure and compared to the experiment. It is shown that increase on the bank energy leads to the increment on the maximum current and decrement on the pinch time.     

Differences Between the Toroidal and Poloidal Flux Loops in the Measurement of Plasma Position in Tokamaks

Measurement of the Asymmetry factor (Shafranov parameter) is essential in tokamak plasma experiments. The purpose of this paper is comparing of the magnetic probes, poloidal flux loops, and diamagnetic loops techniques in determination of the Asymmetry factor in tokamaks. For this reason, array of magnetic probes, flux loops, and diamagnetic loop with its compensation coil, were designed, constructed, and installed on outer surface of the IR-T1 tokamak chamber, and then the Asymmetry factor and poloidal beta measured. Moreover, a few approximate values of the internal inductance for the different plasma current density profiles are also calculated. Experimental results compared.